Hidom High Efficiency Quiet Adjustable Multi-Speed Twin Outlet Aquarium Air Pump - 4.5W 5.4 Lpm High Efficiency Ultra Quiet Aquarium Energy Saving Air Pump Power: 4.5w 5.4 litres per minute - Adjustable Multi-Speed Twin Outlet Suitable for both tropical (freshwater) and saltwater (marine fish) Pumping air the quiet way